PVD technology (Physical Vapor Deposition) is used to apply thin films measuring just micrometers to materials of various qualities. To do so, a block of material, consisting of the film material to be applied, is evaporated in a vacuum. This creates a gas mixture of atomic particles, which precipitate onto the substrate. In plasma-assisted PVD processes, a cathode is evaporated by being bombarded with ions. This sputter or evaporation process can take place at room temperature. It is divided into three stages: Sputtering, diffusion, and film growth.